Features These socket rails are used with socket rail clips to hold sockets in place by the drive end. Material / Steel Overall Width / 1 in Overall Depth / 17 in Overall Height / 1/4 in Compatible Modular System / Proto Socket Clips Finish / Chrome For Socket Size/Type / 1/4-3/4 in Number of Handles / 0 Number of Posts/Slots / 0 Number of Rows / 7 Number of Trays / 0